Gravity Forms Mailchimp Addon 5.5.0

- Fixed a display issue with some conditional logic feed settings.
- Fixed an issue where API calls are being made on all admin pages when checking for deprecated keys.

- Updated the authorization flow to connect to the Mailchimp API via Oauth.

- Fixed an issue where conditional logic is not correctly identifying matching selections when forms contain a multi-select field.
- Fixed an issue where the add-on icon is missing on the form settings screen in Gravity Forms 2.5.